Rat bile duct catheter and experimental device with same

The embodiment of the utility model provides a rat bile duct catheter. The rat bile duct catheter comprises a first catheter (1); a single node (2) connected to the first catheter (1); the second catheter (3) is connected with the single node (2); a first double nodule (4) connected to the second catheter (3); the third catheter (5) is connected with the first double-nodule (4); the first catheter (1) is inserted into a total bile duct and is fixed through the single node (2), the third catheter (5) is inserted into the duodenum and is fixed through the first double node (4), and bile is taken from the second catheter (3). According to the embodiment of the utility model, the first catheter is fixed on the side of the total bile duct through the single node after being inserted into the total bile duct, the third catheter is fixed on the side of the duodenum through the first double node after being inserted into the duodenum, and the second catheter is positioned outside the rat body, so that bile can be tak